small amount of oil comming from exhaust manifold

[rustbuckett611]

Good day all, has anyone had a small amount of oil commming from their exhaust manifold? My engine is a Cummins ISB 275, 20,000 miles, 2002. It appears to be leaking, or its wet where the two pieces connect. Other than that it runs great.
Thanks for your help.

[rustbuckett611]

Good day all, has anyone had a small amount of oil commming from their exhaust manifold? My engine is a Cummins ISB 275, 20,000 miles, 2002. It appears to be leaking, or its wet where the two pieces connect. Other than that it runs great.
Thanks for your help.

[duramax]

Are you sure that the oil is not coming from a valve cover or some other source? The oil wouldn't come from the exhaust manifold. You might want to have a cumins repair center take a look at it. If it is just a small amount it probably just requires monitoring.

[rustbuckett611]

Thanks for your reply. The valve cover is bone dry. I spoke with a Cummins mechanic. He said if the engine idles for log periods it tends to "SLOBER" basicly oil tends to get past the rings, blow-by and goes out the exhaust system. The way to correct it is run the engine under a load, and re-seat the rings. Diesels like to be driven. A small amount of oils is no problem, as in my case.

[Glen M]

rustbuckett611
I do not disagree with the slobber theory. But it would be coming out the exhaust tail pipe, why are you getting it on the exhaust manifold? Do you have a leak on the exhaust manifold?